[lacnog] Weekly Routing Table Report
Routing Analysis Role Account
cscora en apnic.net
Vie Ago 5 16:06:26 BRT 2011
This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG,
CaribNOG and the RIPE Routing Working Group.
Daily listings are sent to bgp-stats en lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
Routing Table Report 04:00 +10GMT Sat 06 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 366101
Prefixes after maximum aggregation: 165963
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 181822
Total ASes present in the Internet Routing Table: 38388
Prefixes per ASN: 9.54
Origin-only ASes present in the Internet Routing Table: 31868
Origin ASes announcing only one prefix: 15337
Transit ASes present in the Internet Routing Table: 5220
Transit-only ASes present in the Internet Routing Table: 141
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 1040
Unregistered ASNs in the Routing Table: 593
Number of 32-bit ASNs allocated by the RIRs: 1620
Number of 32-bit ASNs visible in the Routing Table: 1300
Prefixes from 32-bit ASNs in the Routing Table: 3022
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2489833856
Equivalent to 148 /8s, 103 /16s and 217 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 152918
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91398
Total APNIC prefixes after maximum aggregation: 30293
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87871
Unique aggregates announced from the APNIC address blocks: 37679
APNIC Region origin ASes present in the Internet Routing Table: 4531
APNIC Prefixes per ASN: 19.39
APNIC Region origin ASes announcing only one prefix: 1245
APNIC Region transit ASes present in the Internet Routing Table: 715
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 69
Number of APNIC addresses announced to Internet: 623300640
Equivalent to 37 /8s, 38 /16s and 208 /24s
Percentage of available APNIC address space announced: 79.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 141963
Total ARIN prefixes after maximum aggregation: 73199
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113809
Unique aggregates announced from the ARIN address blocks: 46854
ARIN Region origin ASes present in the Internet Routing Table: 14537
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5583
ARIN Region transit ASes present in the Internet Routing Table: 1538
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803328640
Equivalent to 47 /8s, 225 /16s and 210 /24s
Percentage of available ARIN address space announced: 63.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 87286
Total RIPE prefixes after maximum aggregation: 49562
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80544
Unique aggregates announced from the RIPE address blocks: 53233
RIPE Region origin ASes present in the Internet Routing Table: 15857
RIPE Prefixes per ASN: 5.08
RIPE Region origin ASes announcing only one prefix: 7913
RIPE Region transit ASes present in the Internet Routing Table: 2508
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 934
Number of RIPE addresses announced to Internet: 484720448
Equivalent to 28 /8s, 228 /16s and 63 /24s
Percentage of available RIPE address space announced: 78.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 33995
Total LACNIC prefixes after maximum aggregation: 7596
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 33197
Unique aggregates announced from the LACNIC address blocks: 17229
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.28
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 280
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 281
Number of LACNIC addresses announced to Internet: 87399680
Equivalent to 5 /8s, 53 /16s and 157 /24s
Percentage of available LACNIC address space announced: 57.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8269
Total AfriNIC prefixes after maximum aggregation: 1986
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6558
Unique aggregates announced from the AfriNIC address blocks: 2029
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 26905344
Equivalent to 1 /8s, 154 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 40.1
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 2491 11045 947 Korea Telecom (KIX)
17974 1784 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1560 301 85 TPG Internet Pty Ltd
4755 1522 635 170 TATA Communications formerly
24560 1196 336 187 Bharti Airtel Ltd., Telemedia
9829 1114 929 42 BSNL National Internet Backbo
9583 1070 78 491 Sify Limited
4808 1056 2097 300 CNCGROUP IP network: China169
7552 999 1062 11 Vietel Corporation
17488 980 188 123 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 231 bellsouth.net, inc.
18566 1913 365 240 Covad Communications
1785 1814 681 121 PaeTec Communications, Inc.
4323 1616 1082 400 Time Warner Telecom
7029 1605 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
19262 1413 4792 392 Verizon Global Networks
22773 1405 2900 90 Cox Communications, Inc.
7018 1359 7052 888 AT&T WorldNet Services
2386 1253 520 903 AT&T Data Communications Serv
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
34984 534 106 185 BILISIM TELEKOM
6830 511 1788 316 UPC Distribution Services
3292 470 2080 405 TDC Tele Danmark
20940 470 134 363 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 454 133 26 Bulgarian Telecommunication C
29049 434 32 52 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 404 354 44 Bezeq International
3301 397 1855 346 TeliaNet Sweden
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1565 289 163 TVCABLE BOGOTA
8151 1424 2766 352 UniNet S.A. de C.V.
28573 1278 996 67 NET Servicos de Comunicao S.A
7303 1067 578 175 Telecom Argentina Stet-France
6503 767 450 78 AVANTEL, S.A.
14420 703 56 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 VTR PUNTO NET S.A.
3816 531 232 97 Empresa Nacional de Telecomun
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 513 85 90 Servicios Alestra S.A de C.V
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 803 147 42 LINKdotNET AS number
8452 799 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
15706 230 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
24835 176 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3586 3817 231 bellsouth.net, inc.
23456 3022 728 1620 32-bit ASN transition
4766 2491 11045 947 Korea Telecom (KIX)
18566 1913 365 240 Covad Communications
1785 1814 681 121 PaeTec Communications, Inc.
17974 1784 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1616 1082 400 Time Warner Telecom
7029 1605 993 230 Windstream Communications Inc
20115 1591 1538 623 Charter Communications
10620 1565 289 163 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1784 1753 PT TELEKOMUNIKASI INDONESIA
1785 1814 1693 PaeTec Communications, Inc.
18566 1913 1673 Covad Communications
4766 2491 1544 Korea Telecom (KIX)
7545 1560 1475 TPG Internet Pty Ltd
23456 3022 1402 32-bit ASN transition
10620 1565 1402 TVCABLE BOGOTA
7029 1605 1375 Windstream Communications Inc
4755 1522 1352 TATA Communications formerly
22773 1405 1315 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.192.96.0/21 44611 RIPE Network Coordination Cen
31.209.136.0/21 51896 Hestaleit ehf
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:27 /11:80 /12:233
/13:465 /14:800 /15:1410 /16:12052 /17:5906 /18:9911
/19:19523 /20:26343 /21:26393 /22:34986 /23:34062 /24:190548
/25:1096 /26:1285 /27:731 /28:201 /29:9 /30:2
/31:0 /32:6
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3586 bellsouth.net, inc.
18566 1869 1913 Covad Communications
23456 1485 3022 32-bit ASN transition
10620 1460 1565 TVCABLE BOGOTA
7029 1304 1605 Windstream Communications Inc
11492 1096 1142 Cable One
7011 1058 1160 Citizens Utilities
1785 1053 1814 PaeTec Communications, Inc.
6478 932 960 AT&T Worldnet Services
22773 904 1405 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:348 2:46 4:15 5:1 6:3 8:339
12:1960 13:1 14:502 15:15 16:3 17:5
20:10 23:19 24:1677 27:863 31:517 32:64
33:4 34:2 36:4 38:727 40:106 41:2573
42:37 44:3 46:1071 47:3 49:202 50:384
52:13 54:2 55:4 56:2 57:35 58:865
59:492 60:378 61:1171 62:1056 63:1931 64:3996
65:2298 66:3908 67:1887 68:1099 69:3034 70:774
71:373 72:1866 74:2427 75:329 76:339 77:861
78:705 79:475 80:1124 81:839 82:504 83:465
84:683 85:1066 86:517 87:836 88:334 89:1537
90:224 91:4001 92:525 93:1121 94:1332 95:868
96:420 97:264 98:920 99:37 101:85 103:186
106:79 107:30 108:71 109:1040 110:613 111:722
112:307 113:406 114:559 115:676 116:993 117:668
118:864 119:1182 120:210 121:680 122:1613 123:991
124:1372 125:1289 128:246 129:171 130:171 131:575
132:102 133:21 134:214 135:52 136:215 137:138
138:296 139:115 140:483 141:270 142:380 143:422
144:488 145:57 146:455 147:213 148:682 149:252
150:156 151:190 152:347 153:182 154:5 155:400
156:199 157:355 158:139 159:457 160:319 161:206
162:310 163:163 164:513 165:366 166:532 167:432
168:738 169:153 170:841 171:81 172:1 173:1627
174:619 175:393 176:147 177:195 178:1014 180:917
181:26 182:508 183:237 184:361 185:1 186:1348
187:751 188:913 189:972 190:5086 192:5923 193:4980
194:3511 195:3063 196:1199 197:112 198:3590 199:4015
200:5529 201:1476 202:8426 203:8462 204:4253 205:2317
206:2670 207:2803 208:3994 209:3408 210:2710 211:1410
212:2088 213:1754 214:800 215:70 216:4896 217:1629
218:530 219:348 220:1203 221:485 222:360 223:239
End of report
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